TABLE 4.

Variable nucleotides in the β-tubulin gene fragment amplified from seven isolates of T. weissflogii

Isolatea	Nucleotides at the following positionsb:
	Intron																	Coding
	42	46	55	56	57	68	76	77	79	81	85	86	87	90	91	109	127	174	180	204	231	333	408	411	417	444	483	510	579	585	621	627
Long Island Sound clone Actin	A	C	—	—	G	G	C	C	G	A	T	C	G	A	T	C	A	C	A	C	T	A	T	C	G	T	T	C	G	C	A	G
Long Island Sound clone 4C	.	.	—	—	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.
Norway	.	.	—	—	.	.	.	.	.	.	.	.	.	.	C	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.
Portugal	.	.	—	—	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.
South Pacific	C	—	T	A	A	C	G	G	T	T	.	G	A	G	.	T	G	A	T	T	C	T	C	T	A	C	C	T	A	T	T	C
California	C	—	T	A	A	C	G	G	T	T	.	G	A	G	.	T	G	A	T	T	C	T	C	T	A	C	C	T	A	T	T	C
Hawaii	C	—	T	A	.	C	G	G	T	T	C	G	A	G	.	T	G	.	T	T	C	T	C	T	A	C	C	T	A	T	T	C

^aLong Island Sound clones Actin and 4C and the Norway and Portugal isolates were obtained from the Atlantic Ocean, and the South Pacific, California, and Hawaii isolates were obtained from the Pacific Ocean basin. 

^bThe positions are numbered relative to the first nucleotide immediately following the forward primer. A dot indicates that the nucleotide is identical to the nucleotide in the Long Island Sound clone Actin reference clone; dashes indicate gaps.